Article Dans Une Revue Journal of High Energy Physics Année : 2020

Gravitational waves in warped compactifications

David Andriot
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Résumé

We study gravitational waves propagating on a warped Minkowski space-time with D − 4 compact extra dimensions. While Kaluza-Klein scales are typically too high for any current detection, we analyse how the warp factor changes the Kaluza-Klein spectrum of gravitational waves. To that end we provide a complete and explicit expression for the warp factor, as well as the Green’s function, on a d-dimensional torus. This expression differs from that of braneworld models and should find further uses in string compactifications. We then evaluate the Kaluza-Klein spectrum of gravitational waves. Our preliminary numerical results indicate not only a deviation from the standard toroidal spectrum, but also that the first masses get lowered due to the warp factor.

Dates et versions

hal-02382020 , version 1 (27-11-2019)

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David Andriot, Dimitrios Tsimpis. Gravitational waves in warped compactifications. Journal of High Energy Physics, 2020, 06, pp.100. ⟨10.1007/JHEP06(2020)100⟩. ⟨hal-02382020⟩
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